./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36c6055d9bc91bdfe6bda40d6e8dfc8a04a1c5f2028c6061b128b455abf6cae5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:11:52,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:11:52,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:11:52,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:11:52,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:11:52,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:11:52,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:11:52,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:11:52,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:11:52,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:11:52,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:11:52,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:11:52,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:11:52,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:11:52,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:11:52,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:11:52,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:11:52,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:11:52,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:11:52,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:11:52,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:11:52,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:11:52,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:11:52,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:11:52,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:11:52,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:11:52,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:11:52,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:11:52,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:11:52,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:11:52,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:11:52,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:11:52,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:11:52,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:11:52,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:11:52,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:11:52,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:11:52,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:11:52,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:11:52,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:11:52,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:11:52,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:11:52,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:11:52,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:11:52,748 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:11:52,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:11:52,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:11:52,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:11:52,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:11:52,749 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:11:52,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:11:52,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:11:52,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:11:52,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:11:52,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:11:52,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:11:52,758 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:11:52,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:11:52,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:11:52,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:11:52,759 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:11:52,759 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:11:52,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:11:52,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:11:52,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:11:52,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:11:52,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:11:52,761 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:11:52,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:11:52,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:11:52,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36c6055d9bc91bdfe6bda40d6e8dfc8a04a1c5f2028c6061b128b455abf6cae5 [2021-11-23 01:11:53,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:11:53,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:11:53,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:11:53,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:11:53,115 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:11:53,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem14_label56.c [2021-11-23 01:11:53,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/data/edff23460/3e9e79612da141b28e6cc97f3f039241/FLAG40510b9a8 [2021-11-23 01:11:53,883 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:11:53,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/sv-benchmarks/c/eca-rers2012/Problem14_label56.c [2021-11-23 01:11:53,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/data/edff23460/3e9e79612da141b28e6cc97f3f039241/FLAG40510b9a8 [2021-11-23 01:11:54,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/data/edff23460/3e9e79612da141b28e6cc97f3f039241 [2021-11-23 01:11:54,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:11:54,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:11:54,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:11:54,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:11:54,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:11:54,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:54,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33122b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54, skipping insertion in model container [2021-11-23 01:11:54,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:54,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:11:54,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:11:54,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/sv-benchmarks/c/eca-rers2012/Problem14_label56.c[2009,2022] [2021-11-23 01:11:54,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:11:54,704 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:11:54,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/sv-benchmarks/c/eca-rers2012/Problem14_label56.c[2009,2022] [2021-11-23 01:11:54,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:11:54,856 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:11:54,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54 WrapperNode [2021-11-23 01:11:54,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:11:54,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:11:54,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:11:54,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:11:54,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:54,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:54,954 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-11-23 01:11:54,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:11:54,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:11:54,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:11:54,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:11:54,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:54,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:54,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:54,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:55,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:55,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:55,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:55,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:11:55,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:11:55,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:11:55,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:11:55,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:54" (1/1) ... [2021-11-23 01:11:55,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:11:55,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:11:55,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:11:55,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a011a87-2fb6-4dfd-95f5-e56228c4b9f4/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:11:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:11:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:11:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:11:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:11:55,267 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:11:55,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:11:56,758 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:12:00,284 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:12:00,284 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:12:00,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:12:00 BoogieIcfgContainer [2021-11-23 01:12:00,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:12:00,289 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:12:00,289 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:12:00,300 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:12:00,300 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:12:00" (1/1) ... [2021-11-23 01:12:00,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:12:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:12:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:12:00,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:12:00,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:00,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:00,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:12:00,646 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:12:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:12:00,647 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:00,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:01,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 01:12:01,600 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 01:12:01,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:12:01,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:01,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2021-11-23 01:12:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2021-11-23 01:12:03,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:12:03,901 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:03,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 37 states and 66 transitions. [2021-11-23 01:12:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2021-11-23 01:12:06,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:12:06,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:06,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:08,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 44 states and 80 transitions. [2021-11-23 01:12:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2021-11-23 01:12:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:12:08,876 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:08,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:11,447 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:12,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:12,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 51 states and 98 transitions. [2021-11-23 01:12:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 98 transitions. [2021-11-23 01:12:12,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:12:12,891 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:12,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 58 states and 108 transitions. [2021-11-23 01:12:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 108 transitions. [2021-11-23 01:12:16,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:12:16,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:16,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:23,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 70 states and 146 transitions. [2021-11-23 01:12:23,750 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 146 transitions. [2021-11-23 01:12:23,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:12:23,752 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:23,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 71 states and 148 transitions. [2021-11-23 01:12:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 148 transitions. [2021-11-23 01:12:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:12:26,766 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:26,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 87 states and 187 transitions. [2021-11-23 01:12:36,322 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 187 transitions. [2021-11-23 01:12:36,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:12:36,324 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:36,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:41,189 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:41,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 83 states and 176 transitions. [2021-11-23 01:12:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 176 transitions. [2021-11-23 01:12:41,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:12:41,979 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:41,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:47,424 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:49,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 86 states and 186 transitions. [2021-11-23 01:12:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 186 transitions. [2021-11-23 01:12:49,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:12:49,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:49,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:12:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:12:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:12:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 87 states and 189 transitions. [2021-11-23 01:12:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 189 transitions. [2021-11-23 01:12:56,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:12:56,972 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:12:56,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:12:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:13:02,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:02,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 90 states and 195 transitions. [2021-11-23 01:13:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 195 transitions. [2021-11-23 01:13:02,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:13:02,177 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:02,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:14:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:14:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:14:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 96 states and 212 transitions. [2021-11-23 01:14:31,254 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 212 transitions. [2021-11-23 01:14:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:14:31,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:14:31,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:14:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:15:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:15:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:15:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 95 states and 203 transitions. [2021-11-23 01:15:53,774 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 203 transitions. [2021-11-23 01:15:53,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 01:15:53,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:15:53,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:15:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:41,196 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:47,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:16:54,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:54,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 113 states and 252 transitions. [2021-11-23 01:16:54,571 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 252 transitions. [2021-11-23 01:16:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 01:16:54,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:54,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:17:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:17:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:18:02,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 129 states and 288 transitions. [2021-11-23 01:18:02,965 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 288 transitions. [2021-11-23 01:18:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 01:18:02,966 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:02,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat